DTA143TCAT116

Overview

The DTA143TCAT116 is a single PNP digital transistor manufactured by ROHM Semiconductor, housed in an SOT-23-3 surface-mount package. It integrates a 4.7 kOhm input bias resistor to simplify circuit design. Key electrical parameters include a collector-emitter voltage (VCEO) of -50 V and a continuous collector current of -100 mA. The device features a minimum DC current gain (hfe) of 100 at -1 mA and -5 V, with a maximum operating frequency of 250 MHz. Power dissipation is rated at 350 mW, and the maximum operating temperature reaches +150 C. The component meets AEC-Q101 qualification standards for automotive applications.

Feature Summary

• Integrates a built-in bias resistor to eliminate external input resistors for inverter circuit configuration
• Utilizes thin-film resistors with complete isolation to minimize parasitic effects and allow positive input biasing
• Simplifies design by requiring only on/off condition settings for operation

Applications

• Inverter circuits
• Interface logic
• Driver stages

Procurement Notes

Verify the specific suffix T116 corresponds to the tape-and-reel packaging format required for automated assembly. Confirm that the AEC-Q101 qualification aligns with target automotive reliability standards. Ensure the SOT-23-3 footprint matches the PCB layout constraints. Check RoHS compliance documentation for environmental regulations. Validate the 350 mW power dissipation rating against thermal management requirements in the final application.

Selection Notes

Select this component when a PNP digital switch with a 4.7 kOhm base resistance is needed. The -50 V rating suits low-voltage logic interfacing. The 250 MHz transition frequency supports high-speed switching applications. Compare against NPN equivalents like DTC143 if polarity inversion is not required. Consider the SOT-23-3 size for space-constrained designs.

Part Context

This part belongs to the DTx series of resistor-built-in transistors from ROHM. It shares the same internal structure as DTA143TCA but differs in packaging quantity and reel specifications defined by the T116 suffix. It is functionally identical to other DTA143 variants within the same polarity and resistance class.

Replacement Considerations

DTA143TCAHZGT116 offers identical electrical characteristics in the same SOT-23-3 package with the same T116 reel specification. DTA143ZE3HZGTL provides similar performance but uses a smaller SOT-416 package and has different voltage ratings.